MOF-mediated synthesis of novel PtFeCoNiMn high-entropy nano-alloy as bifunctional oxygen electrocatalysts for zinc-air battery

Xie，Mingkuan1,2,3; Xiao，Xin1,2,4,5; Wu，Duojie3,6; Zhen，Cheng3; Wu，Chunsheng1,2; Wang，Wenjuan1,3; Nian，Hao1,2; Li，Fayan1,2; Gu，Meng Danny3,6; Xu，Qiang1,2,3,4,5

2024-06-01

10.1007/s12274-024-6526-4

Nano Research   影响因子和分区

1998-0124

1998-0000

High-entropy alloy (HEA)-based materials are expected to be promising oxygen electrocatalysts due to their exceptional properties. The electronic structure regulation of HEAs plays a pivotal role in enhancing their elctrocatalytic ability. Herein, PtFeCoNiMn nanoparticles (NPs) with subtle lattice distortions are constructed on metal-organic framework-derived nitrogen-doped carbon by an ultra-rapid Joule heating process. Thanks to the modulated electronic structure and the inherent cocktail effect of HEAs, the as-synthesized PtFeCoNiMn/NC exhibits superior bifunctional electrocatalytic performance with a positive half-wave potential of 0.863 V vs. reversible hydrogen electrode (RHE) for oxygen reduction reaction and a low overpotential of 357 mV at 10 mA·cm for oxygen evolution reaction. The assembled quasi-solid-state zinc-air battery using PtFeCoNiMn/NC as air electrode shows a high peak power density of 192.16 mW·cm, low charge–discharge voltage gap, and excellent durability over 500 cycles at 5 mA·cm. This work demonstrates an effective route for rational design of bifunctional nanostructured HEA electrocatalysts with favorable electronic structures, and opens up a fascinating directions for energy storage and conversion, and beyond.

high-entropy nano-alloy oxygen evolution reaction oxygen reduction reaction zinc-air battery

SCI ; EI

英语

通讯

2-s2.0-85188247369

Scopus

1.Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM),Shenzhen,518055,China
2.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL),Shenzhen,518055,China
5.Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong,Southern University of Science and Technology,Shenzhen,518055,China
6.Eastern Institute for Advanced Study,Eastern Institute of Technology,Ningbo,315200,China

Xie，Mingkuan,Xiao，Xin,Wu，Duojie,et al. MOF-mediated synthesis of novel PtFeCoNiMn high-entropy nano-alloy as bifunctional oxygen electrocatalysts for zinc-air battery[J]. Nano Research,2024,17(6):5288-5297.

Xie，Mingkuan.,Xiao，Xin.,Wu，Duojie.,Zhen，Cheng.,Wu，Chunsheng.,...&Xu，Qiang.(2024).MOF-mediated synthesis of novel PtFeCoNiMn high-entropy nano-alloy as bifunctional oxygen electrocatalysts for zinc-air battery.Nano Research,17(6),5288-5297.

Xie，Mingkuan,et al."MOF-mediated synthesis of novel PtFeCoNiMn high-entropy nano-alloy as bifunctional oxygen electrocatalysts for zinc-air battery".Nano Research 17.6(2024):5288-5297.